神经网路预测.txt

各类人工智能算法源代码哦

P = [1993 1994 1995 1996 1997];
T = [0.15577 0.20542 0.24966 0.28967 0.35836];
net = newff([1993 1997],[5 1],{'tansig' 'tansig'});
net=init(net); %初始化
net.trainParam.epochs=1000;
net.trainParam.goal=0.0001; %设置性能目标值
net.trainFcn='trainlm';  %LM算法
%net.trainFcn='traincgf';  %共轭梯度法
%net.trainFcn='traingdm';  %带动量的梯度下降法
%net.trainFcn='traingda';  %自适应学习率BP算法
%net.trainFcn='traingdx';  %增加动量与自适应学习率BP算法
%net.trainFcn='trainrp';  %弹性BP算法
%net.trainParam.lr=0.01; %设置自学习的学习率
net = train(net,P,T);
Y = sim(net,P);
plot(P,T,P,Y,'o')